if isEmptyValue(reflect.ValueOf(d.Get("connection_id"))) {
	// connection id is set by API when unset and required to GET the connection
	// it is set by reading the "name" field rather than a field in the response
	if err := d.Set("connection_id", flattenBigqueryConnectionConnectionConnectionId("", d, config)); err != nil {
		return fmt.Errorf("Error reading Connection: %s", err)
	}
}
